Uterine tubes are otherwise called as

Correct Answer: C

Rationale: The correct answer is C: Fallopian tubes. These tubes are also known as uterine tubes because they connect the ovaries to the uterus, allowing eggs to travel from the ovaries to the uterus. The other choices are incorrect because: A: Vas deferens is a tube that carries sperm from the epididymis to the urethra in males. B: Epididymis is a coiled tube located on the back of each testicle where sperm mature. D: Vagina is the muscular tube that connects the cervix to the external genitalia in females.

Correct Answer: B

Rationale: The correct answer is B: Flagella. Flagella are whip-like structures that provide motility to sperm cells. They enable the sperm cell to move towards the egg for fertilization. Cilia (choice A) are shorter hair-like structures involved in movement but are not found on sperm cells. Pseudopodia (choice C) are temporary projections used for cell movement in some organisms, not sperm cells. Dendritic processes (choice D) refer to branching extensions of nerve cells, not involved in sperm motility. Therefore, flagella is the most appropriate choice for the hair-like process on the sperm cell that makes it motile.

Correct Answer: D

Rationale: The correct answer is D: Scapula. The scapula is commonly known as the shoulder blade and is the bone that connects the upper arm bone (humerus) to the collarbone (clavicle) to form the shoulder joint. The other choices, A: Clavicle, is the collarbone; B: Sternum, is the breastbone; and C: Humerus, is the upper arm bone, are not specifically referred to as the shoulder bone. Therefore, the scapula is the correct answer as it is directly associated with the shoulder joint.

Correct Answer: B

Rationale: The correct answer is B: Sternum. The sternum is commonly referred to as the breastbone because it is a flat bone located in the center of the chest. It connects to the rib cage and helps protect vital organs such as the heart and lungs. The xiphoid process (choice A) is the lower part of the sternum, the clavicle (choice C) is the collarbone, and the coracoid process (choice D) is a projection on the scapula. Therefore, the sternum is the most appropriate term for the breastbone.

Correct Answer: A

Rationale: The correct answer is A: Lumbar vertebrae. The lumbar vertebrae are the largest and strongest of the vertebral column due to their weight-bearing function in supporting the upper body. They have a larger body and thicker structures compared to other vertebrae, providing stability and support. The sacrum, thoracic, and cervical vertebrae are not as large or strong as the lumbar vertebrae, as they have different functions and shapes tailored to their specific roles in the spine.